1.Black roofinf slate is of good quality that passed ASTM and BS680 standard . 2.Regular size:300x600/250x500/250x400mm.
Black roofing slate is green material. They are of good quality and nice color. Some details are as follows:
Color : Black (Dark Gray)
Remarks : This slate is with good quality that passed SDTM and BS680 standard .It has following characteristics:
--A little bit rough surface
--Nice color
--Non-fading
--Durable
Output : 6 containers each month
Regular size : 600X300mm (24″X12″)
500X250mm(20″X10″)
400X250mm(16″X10″)
Thickness :5-7mm 6-8mm 7-9mm
Transport : 50kilometers from factory to Jiujiang Port
Physical Property Testing Result
Tests | slate |
Water Absorption(%) | 1.83 |
Compressive Strength (MPa) | 69.1 |
Acid-proof(%) | 99.76 |
Alkali-proof(%) | 99.78 |
black roofing slate
